Formation or the doublets during oriented growth of the Fe-4.34Ni alloy

The oriented growth of the Fe-4.34Ni alloy has been performed in the Bridgm an system. The solid/liquid interface has been frozen and the cellular morp hology has been revealed. The doublet cells have been selected from among a ll the frozen cells. The adequate equation has been applied to describe the geometry of the selected doublet cells. This equation is the solution of d ifferential equation similar to inhomogeneous equation formulated for the p endulum motion with a restraining effect. The shape of revealed doublet cel l has been reproduced using the formulated equations. Additionally the doub let shape has been confirmed applying the EBSD technique.